Hi again all, Well having owned a Ducati 749S for about 2 weeks I've learnt a valuable lesson. Cheap is not good! I decided to replace the original clutch springs are they looked a bit tired with some cheap ones. All was going well until one of the bolts snapped off in the clutch drum! I've ordered a replacement cluctch drum as well as a clutch drum lock and was going to have a go fitting it myself. Now it's fair to say I'm not very mechanically minded so I have a few questions that I'm hoping you folk can answer for me please. 1. Is this a straightforward job to do or would I be better getting a professional to sort it? 2. Is the main nut 32mm? 3. What torque should be applied when refitting the main nut? 4. Is there a torque setting for the clutch springs? Thanks in advance all!
S Simplest to get the broken bolt out. It should have little or no resistance to coming out. The bolts only need to be nipped up gently. The spring pressure will keep them in place.
1. Is this a straightforward job to do or would I be better getting a professional to sort it? Yes, probably, based on your non-mechanically minded mishap 2. Is the main nut 32mm? Yes 3. What torque should be applied when refitting the main nut? 180Nm 4. Is there a torque setting for the clutch springs? Not too tight Thanks in advance all!
FYI. Some people run on only 4 springs anyway as it makes the clutch lighter. Put it back together with the broken one and its opposite missing and go for a ride. If the clutch does not slip when accelerating hard you just got out of jail.
PS, if it's the same as a 996 the springs are 6nm, not very tight at all. You could also try a left hand drill bit or an EazyOut to get the broken bolt out.
Just a comment that may be helpful regarding the drum nut. Its 32mm but you may find that an impact socket fits better as some standard sockets as these don't really tend sit over the nut well.
I ran 4 springs on my trackday bike for years without any issues. And yes. The lever weight was better.
